changelog: adds note about closing #7481

CHANGELOG.md

@@ -25,7 +25,7 @@ From `/etc/grafana/datasources` to `/etc/grafana/provisioning/datasources` when
 * **Graphite**: Query editor updated to support new query by tag features [#9230](https://github.com/grafana/grafana/issues/9230)
 * **Dashboard history**: New config file option versions_to_keep sets how many versions per dashboard to store, [#9671](https://github.com/grafana/grafana/issues/9671)
 * **Dashboard as cfg**: Load dashboards from file into Grafana on startup/change [#9654](https://github.com/grafana/grafana/issues/9654) [#5269](https://github.com/grafana/grafana/issues/5269)
-
+* **Prometheus**: Grafana can now send alerts to Prometheus Alertmanager while firing [#7481](https://github.com/grafana/grafana/issues/7481), thx [@Thib17](https://github.com/Thib17) and [@mtanda](https://github.com/mtanda)
 ## Minor
 * **Alert panel**: Adds placeholder text when no alerts are within the time range [#9624](https://github.com/grafana/grafana/issues/9624), thx [@straend](https://github.com/straend)
 * **Mysql**: MySQL enable MaxOpenCon and MaxIdleCon regards how constring is configured.  [#9784](https://github.com/grafana/grafana/issues/9784), thx [@dfredell](https://github.com/dfredell)